Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-42211

high Nessus Plugin ID 341748

Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination of steps could potentially allow unauthorized remote code execution (RCE) through external requests. This attack requires the application code to have an existing prototype pollution vulnerability, which can then be leveraged in a 2-step attack where the second step triggers unauthorized RCE on the remote server. This does not impact applications using Declarative Mode (`<BrowserRouter>`) or Data Mode (`createBrowserRouter/<RouterProvider>`). This is patched in version 7.14.2. (CVE-2026-42211)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-42211

Plugin Details

Severity: High

ID: 341748

File Name: unpatched_CVE_2026_42211.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 8/31/2026

Updated: 9/1/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.62

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2026-42211

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:dotnet5.0-build-reference-packages, p-cpe:/a:centos:centos:grafana-selinux, p-cpe:/a:centos:centos:grafana, p-cpe:/a:centos:centos:ipa-client-common, p-cpe:/a:centos:centos:ipa-client-encrypted-dns, p-cpe:/a:centos:centos:ipa-client-epn, p-cpe:/a:centos:centos:ipa-client-samba, p-cpe:/a:centos:centos:ipa-client, p-cpe:/a:centos:centos:ipa-common, p-cpe:/a:centos:centos:ipa-selinux-luna, p-cpe:/a:centos:centos:ipa-selinux-nfast, p-cpe:/a:centos:centos:ipa-selinux, p-cpe:/a:centos:centos:ipa-server-common, p-cpe:/a:centos:centos:ipa-server-dns, p-cpe:/a:centos:centos:ipa-server-encrypted-dns, p-cpe:/a:centos:centos:ipa-server-trust-ad, p-cpe:/a:centos:centos:ipa-server, p-cpe:/a:centos:centos:ipa, p-cpe:/a:centos:centos:pcs-snmp, p-cpe:/a:centos:centos:pcs, p-cpe:/a:centos:centos:python3-ipaclient, p-cpe:/a:centos:centos:python3-ipalib, p-cpe:/a:centos:centos:python3-ipaserver, p-cpe:/a:centos:centos:python3-ipatests, p-cpe:/a:redhat:enterprise_linux:dotnet5.0-build-reference-packages, p-cpe:/a:redhat:enterprise_linux:grafana-selinux, p-cpe:/a:redhat:enterprise_linux:grafana, p-cpe:/a:redhat:enterprise_linux:ipa-client-common, p-cpe:/a:redhat:enterprise_linux:ipa-client-encrypted-dns, p-cpe:/a:redhat:enterprise_linux:ipa-client-epn, p-cpe:/a:redhat:enterprise_linux:ipa-client-samba, p-cpe:/a:redhat:enterprise_linux:ipa-client, p-cpe:/a:redhat:enterprise_linux:ipa-common, p-cpe:/a:redhat:enterprise_linux:ipa-selinux-luna, p-cpe:/a:redhat:enterprise_linux:ipa-selinux-nfast, p-cpe:/a:redhat:enterprise_linux:ipa-selinux, p-cpe:/a:redhat:enterprise_linux:ipa-server-common, p-cpe:/a:redhat:enterprise_linux:ipa-server-dns, p-cpe:/a:redhat:enterprise_linux:ipa-server-encrypted-dns, p-cpe:/a:redhat:enterprise_linux:ipa-server-trust-ad, p-cpe:/a:redhat:enterprise_linux:ipa-server, p-cpe:/a:redhat:enterprise_linux:ipa, p-cpe:/a:redhat:enterprise_linux:pcs-snmp, p-cpe:/a:redhat:enterprise_linux:pcs, p-cpe:/a:redhat:enterprise_linux:python3-ipaclient, p-cpe:/a:redhat:enterprise_linux:python3-ipalib, p-cpe:/a:redhat:enterprise_linux:python3-ipaserver, p-cpe:/a:redhat:enterprise_linux:python3-ipatests

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 6/2/2026

Reference Information

CVE: CVE-2026-42211